Doorlock



Patented May 5, 1931 assess TT PTEET .Fl l.

501-11? 3. FLZNN, F DETROIT, MZGHIGAN, ASSIGNOR TO TERNSTEDT TEANUFAGTURING COMPANY, OF DETRQIT, MICHIGAN. A CORPORATION OF MICHIGAN DOORLOCK Application filed Qctohcr 12, 1929. Serial 110. 399,118.

This invention relates to a door lock and more particularly to that type of door lock which is known as the narrow or thin pillar door lock. 75 in closed vehicle body construction it has long been the aim to increase the window or vision area. This has been achieved by decreasing the thickness of the door and body pillars. The narrowing of the door lock pillar in order to increase the window or vision area, has necessitated the devising of a new type of thin pillar door lock. Among the various types of thin pillar door locks are those which have a bulge in the lock frame 15 flange to provide a suitable journal for the handle shank of the look. This places the handle shank completely out of the window well which consequently permits the use of a wider window and an increase in the vision area, but this arrangement has disadvantages that the bulge provided in the flange of the lock frame is not only unsightly but necessitates the cutting away of the adjacent body pillar to permit the complete closing of the door. This results in an undesirable weakening of the body pillar. Tt is the object of 7 this invention to permit an increase in the length of the window well and the use of a wider window with the consequent increase 30 of the vision area, and this has been achieved by mounting the handle shank and associated rollback inmediately adjacent the pillar face flange of the lock frame. In fact the handle shank and roll-back have been journaled in the lock frame so close to the pillar face lock frame flange that the fiance has an opening therein to permit the projection of a portion of the roll-back into, but not beyond, the look frame flange. In the drawings:

Fig. 1 is an elevation with the lock cover artly broken away to show the mounting of the rollback and associated handle shank.

Fig. 2 is a section along the line 22 of Fig. 1.

Figs. 3 and l are detail views of the lock bolt.

Figs. 5 and 6 are detail views of the rollback.

Referring more particularly to the drawings, the lock consists of the lock frame 1 having a pillar face flange 2. The frame 1 has struck therein the lugs 3 which serve as guides for the bolt l which is arranged to project through, and be guided by the sides of, a suitable opening 6 in the lock flange 2. The lock frame has struck therein the lug .7 which serves as a stop for the bolt 4. The bolt l is provided with a suitable bolt spring 8 the head 9 of which abuts against the struck-out shoulder 10 of the bolt.

The lock frame 1 is provided with a circular opening 11, the periphery of which is immediately adjacent the pillar face flange 2 as at 12. The opening 11 is arranged to rotatably receive the roll-back 13. The roll-back 13 is shown in detail in Figures 5 and 6 and consists of the central cylindrical portion 14: having an annulus 15 and the lug portion 16 arranged to engage the roll-back abutment 17 of the bolt a when the roll-back is actuated by the handle 18 to retract the bolt. By referring to Fig. 2 it will be noted that the roll-back annulus 15 projects into the opening 20 provided therefor in the pillar face flange substantially to, but not appreciably beyond, the outer face 21 of the pillar face flange. Hence, the pillar face flange 2 can be provided with a suitable facing which covers the opening 20 in the pillar face flange and presents a neat and sightly appearance withal.

The lock is also provided with a suitable cover 22 which carries the lugs 23 which.

project through suitable openings 24: in the lock frame, the projecting portions of the lugs being bent over as at 25 to hold the cover to the lock frame.

It is evident that there is here produced a new type of thin pillar door lock which permits an appreciable increase in the size of the window well and a consequent increase in the width of the window or vision area, and this is achieved without in any wise weakening the adjacent body pillar or without providing an unsightly bulge in the lock frame flange.

l/Vhat I claim is:

1. In a lock having a reciprocating bolt, the combination with a lock frame having a pillar face flange with an opening therethrough, of a roll-back for said bolt mounted on the lock frame and having a portion projecting in the said opening a distance substantially equal to the thickness of the metal of the flange and entirely within the face of said flange, and means operatively associated With said rollback for turning the same to retract the bolt.

2. In a lock having a reciprocating bolt, the combination with a look frame having a pillar face flange with an opening therethrough and a roll-back arranged to project into but not through said opening, of a facing plate for said flange face arranged to conceal the said opening.

In testimony whereof I afiix my signature.

JOHN B. FLYNN. 

